Current_sense_motor_control

Published:2009/7/25 0:17:00 Author:Jessie | From:SeekIC

In this circuit, the LM3525 regulating PWM compares the voltage at the current-sense output pin of the LMD18200 with an externally-generated control voltage (VCURRENT ADJUST), and sets the duty cycle of the control signal (from 0 to about 50%) until the motor is running at the desired current level.Switching frequency is about 40 kHz. By inverting the phase of the single control input, the direction of motor rotation can be reversed



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